Special Features:

180 localline capacity; 180local lines equipped for opr; switchboard data, common battery type, 3 opr posn, 48 v battery, dial incl; 20 trunk lines; complement data, complement listing, 1, mil, air conditioner, mil-a-11210, class 1 /fsn 4120-266-9074/, 1, jetds, telephone switchboard group, type no. An/mta-3 /fsn 5805-893-2689/, 1, jetds, telephone terminal group, type no.An/mta-4 /fsn 5805-893-2688/, 1, jetds, generator set, gasoline engine, trlr mtd, type no.Pu-619/m /fsn 6115-738-6339/; no specification feat; jetds id data, central ofc, telephone, manual, ty no.An/mtc-1

Properties:

A telephone office having switching facilities for connecting any manual (nondial) telephone station to any other telephone station within its area. The switching is accomplished manually by means of a jack termination in a switchboard equipped with cord circuits or switches, and supervisory circuits. May include a dial. It generally has trunking facilities to and from other central offices for making connections to telephone stations in those offices. The central office includes all equipment required to serve the lines having a common office name. Does not include the lines from the central office or the telephone stations.